cbs news. >>> they could strike at any time. destructive earthquakes. how are historical landmarks protected from crumbling. the high tech way to preserve them even if flattened. >>> sights and sounds hockey fans have been waiting to hear for months. the sharks take to the ice with hundreds eager for the puck to drop ,,,,,, ,,,, and wh >>> living in california means live being the reality an earthquake could hit at any moment. while much has been done to shore up modern structures, landmarks are at particular risk. alan martin shows us thanks to an east bay nonprofit they could be preserved even if the entire structure is destroyed. >> reporter: it is where 18th century architecture meets 20th century technology. mission delore built in 1776. archaeologists came to take a digital footprint of all california's missions made possible by a machine like this one. >> it will pulse out 50,000 laser pulses every second. >> reporter: taking 3d images of every nook and cranny and able to capture pictures of structures and paintings behind walls. >> best way to d